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Barz, Ralph-Uwe; Grassl, M.; Gille, Peter (2002): Studies on the solubility of GaPO4 in phosphoric acid. In: Journal of Crystal Growth, Vol. 245, No. 3-4: pp. 273-277
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The solubility of gallium orthophosphate (GaPO4) in 15 M phosphoric acid has been studied in the temperature range between 150 °C and 250 °C. The data were determined using an experimental set-up, which was especially designed for the purpose of dissolution as well as crystallization experiments. The measured values are discussed with respect to the question whether or not a considerable region of metastability exists. The temperature coefficient of the solubility has been found negative for temperatures up to about 250 °C.